Speed-controller for carding-engine doffers.



J. FILLING.

SPEED CONTROLLER FOR GARDING ENGINE DOFFER APPLICATION FILED AUG.4,1914v Patented Mar. 23, 1915.

will! THE NORRIS PETERS CCL. PHOTO-LITHO.. WASHINGTON. D. C

JOHN :PILLING, or BI'IRNLEY, ENGLAND.

SPEED-CONTROLLER Fort oARnING nNGiNn 150mm.

Specification of Letters Patent.

Patented Mar. 23, 1 915.

Application filed August 4', 1914; Serial No; 8'55j062.

To all whom; it may concern: I V

Be'it known that 1, JOHN FILLING, a subject of the King of GreatBritain, residing at Burnley, Lancashire, England, have 1nvented a newand useful Improvement in Speed-Controllers for Carding-Engme Doffers,of which the following is a speclfica tion.

This invention relates to certain new and useful improvements in speedcontrollers for carding engine dofi'ers, and the primary object of theinvention is to provide means which automatically acts to restore fastspeed of the doffer after or subsequent to the latter having beenchanged to slow speed, which slow speed is necessary to enable piecingup of the web or sliver upon breaking of the latter.

In carding engines when the web or sliver breaks, the operator usuallyputs into action mechanism commonly known as a slow motion and which isunder manual control of the operator, which slow motion or speed causesthe dofl'er to slowly revolve to thereby enable the operator to piece upin the most convenient manner, and to enable the output to remainconstant, or at a maximum, 1t 1s necessary to again restore the dofierto fast speed, following the piecing up operation. Should, however, theattendant fall to restore the doffer to fast speed, through negligenesor otherwise, the output of the carding' engine is' correspondinglydecreased, the present invention therefore aiming to provide forautomatic restoration of the fast speed subsequent to, and at apredetermined period following the reductlon of speed, which period isof sufficient duration to ordinarily allow the attendant to effectcompletion of the piecing up OPGItItIOIL In the drawingsFigure 1 1s aside elevation of the invention applied to a carding engine, and Fig. 2is a top view, partly broken away and in section.

The shaft 1 has a hand engaging part or handle 2 whereby the operatormay manually turn the shaft so as to move the belt shipper 3 from fastto slow speed and woe versa, for which purpose the shaft has a crank 4'which engages the shipper 3, to move the belts B on the drive pulleys P.

Suitably secured to a stationary part of the frame of the cardingengine, is a rigid member '5 which has a cam face 6 which latter coactswith a member 7 that has a cam face 8, the" member 7 being rigidlysecured to the shaft 1.

Secured to the-revolving d'ofi'er shafts is a worm 9 which is adapted tomesh with a*- worm wheel 10 that is rigidly secured to the shaft 1. Theshaft 1 slides lengthwise, so'

that upon same being given partial rotation,

say one-half a revolution, the coacting cam faces 6 and 8 which arenormally in the separated or disengaged position depicted in Fig. 2 ofthe drawings, will be permitted to I engage, thereby allowing the shaftto move' endwise so asto cause the worm wheel 10 to mesh with the worm 9for a purpose now to be set forth;

Normally, and when the engine is at fast speed, the worm wheel 10 isheld out of en-' gagement with the worm 9,: in which position of theparts the belt shipper is in position for effecting fast speed of thebelts B, Should now the attendant have occasion to move the belt shipperto position to effect slow speed of the dofl'er, and consequently of theshaft S, the shaft 1 isgiven partial rotary motion to effect the desiredshift of the shipper to position in which the belts are driven at slowspeed, which movement I of the shaft causesthe cam faces to engagethereby allowing the shaft 1 to slide lengthwise and in a directiontoward the dofifer with the result that. the worm wheel 10' which iscarried by the shaft is brought to engage or mesh with the worm 9,whereupon the shaft S being revolved at slow speed, same will, throughthe worms 9' and 10 effect rotation of the shaft 1, with the result thatthe latter will, due to the cam faces 6 and. S riding upon each other totheir normally separated positions, again restore the. shaft 1 to itsnormal position, the rotation of the shaft carrying withit the beltshipper 3, which consequently causes the belts B to be again engagedwith the fast drive pulley,

whereby the return-from slow to fast speedthe automatic return of thedoffer to fast 110.

speed, he may manually rotate the shaft 1, so as to not necessitateWaiting until the shaft 1 is automatically returned, to return theengine to fast speed.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a carding engine, in combination with the dolfershaft and means to allow drive of the shaft at fast and slow speeds,amanual control rotating upon its longitudinal axis for said means toenable the shaft to be moved at slow speed, and means for rotating andlongitudinally shifting said manual control whereby said first meansWill be automatically restored to fast speed position at a predeterminedperiod following operation of the manual control to slow speed position.

2. In combination with the doifer of a carding engine, and manual meansrotating upon its longitudinal axis to allow selective fast or slowdrive thereof, means to rotate and longitudinally shift andautomatically return the manual means to fast drive position at a periodof determinable duration following the operation of the manual means toslow drive position.

3. In combination with the doffer shaft of a carding engine and a wormthereon, a slow and fast speed drive for said shaft, means to controlthe drive, a manually operable shiftable and rotatable shaft having aworm rigidly mounted thereon adapted to mesh with the first named worm,whereby to rotate the shaft, a cam on the second shaft, and a stationarycam to engage the first cam, said worms being normally out of engagementand being engaged when the second shaft is manually turned to move thedrive from fast to slow, and the second shaft being turned by the actionof the worms and longitudinally shifted by the action of the cams whensaid worms mesh.

4:. In combination with the doffer shaft of a carding engine and a slowand fast speed drive therefor, means to control the drive, a manuallyrotatable and shiftable shaft, normally disengaged driving means for themanual shaft between same and the doffer shaft to rotate the manualshaft, and means whereby after movement of the manual shaft to slowposition same will be automatically shifted upon its rotation todisengage the driving means thereof and to move the drive control tofast speed position.

5. In combination with a carding engine doffer, and means to enable sameto be rotated either at fast or slow speed, means turnable upon itslongitudinal axis to manually control said first means, and meanswhereby said manual means will be longitunally shifted and automaticallyrestored to fast drive position at a predetermined period following itsmovement to slow drive position.

6. In combination with a carding engine doffer, and means to enable sameto be rotated either at fast or slow speed, manual means turnable uponits longitudinal axis to control said means, and cam means toautomatically restore the manual means to predetermined initial positionafter actuation thereof.

7. In combination with a carding engine dofi'er and means to enable sameto be rotated either at fast or slow speed, means turnable upon itslongitudinal axis to control the first means, and means to automaticallyrestore the controlling means to predetermined initial position aftermanual actuation thereof by longitudinally shifting same.

8. In combination with the dolfer shaft of a carding engine, and meansto drive same fast or slow, a normally quiescent turnable andlongitudinally shiftable rod which upon turning thereof effects fast orslow drive of the shaft, means to turn said rod from the shaft after therod has been manually turned to effect slow drive of the shaft and meanswhereby upon mechanical turning of the rod the latter will belongitudinally shifted so as to be disengaged from the shaft uponexpiration of a predetermined period.

In testimony whereof I have signed my name to this specification in thepresence o two subscribing witnesses.

JOHN FILLING Witnesses ALFRED SUTTHoUsn, ERNALD SIMrsoN MosuLEY.

Copies of this patent maybe obtained for five cents each, by addressingthe Commissioner of Patents Washington, D. C.

